I'm not going crazy...and neither is my child?! I was seriously considering taking him to see a psychiatrist until I read these posts! My 3 yr old took a 10 day round of Omnicef. During that time he had serious mood changes which I had pretty much determined were related to the Omnicef (although my dr said it he'd never heard of that) - severe temper tantrums at the drop of a hat (more so than usual), actually bit a child at school and was just plain mean. Just to be on the safe side I had already planned on not putting him on Omnicef again. THEN I came across this site. He has also had several other "issues" over the last couple weeks that I thought were unrelated - just a run of bad luck or something. However, every one of them is on here as something that someone else has also experienced while on Omnicef: waking up crying during the night - inconsolable and won't tell you what's wrong, mysterious rash on his back, and wetting his pants after being potty trained for some time. I can't believe it. I had even taken a urine sample in to the dr sure he had a UTI (negative of course). Also it may be helpful to note that some of my child's side effects developed the week after he stopped taking the medicine, so I think it takes a while to get out of their systems.
I know that there are lots of children out there that have taken this antibiotic with great results. However, mine will never take it again and I wish doctors and pharmacists were more aware that these problems do exist.